Not idle surge...

[doodie]

I'm pretty damn sure thats its not idle surge anymore. I've replaced my TPS, changed BISS screw and I'm still having the same symptoms. Cold engine idles at 850-900rpm. But when the engine warms up, the idle shoots up to 1300 with the BISS screwed all the way down. I'm starting to think that the coolant line is clogged or something since its supposed to cool the air down when the car is warmed up at idle.

The car runs fine when I'm not idling. I have yet to clean out my TB. But I will be doing that soon, maybe in a week. I'm going to pull the whole TB off to clean it, is there anyway that I can get to where the coolant goes through? so I can see if theres any blockage around.

 

[PhoenixRPR]

You mentioned that you screwed the BISS "down all the way". According to vfaq, you're suppose to screw it all the way down and then screw it back 2 full turns, which sets it at 750. Hope that helps.

 

[doodie]

if I screw it back up by 2 turns, I'll be idling at 1600rpm constantly. If I have the BISS screw all the way in, I'll be idling at 1100rpm.

 

[PhoenixRPR]

have your ead all the info about the idle problem from vfaq and the 1000 Already Answered Questions section? About how to set the BISS with two turns back and how to check the ISC motor and EGV Valve gasket. If none of that works, try checking your oxygen sensor under teh car, check the ground, mine was surging because of my BISS and ground to the o2 sensor.

 

[PhoenixRPR]

Originally posted by PhoenixRPR
have your ead all the info about the idle problem from vfaq and the 1000 Already Answered Questions section? About how to set the BISS with two turns back and how to check the ISC motor and EGV Valve gasket. If none of that works, try checking your oxygen sensor under teh car, check the ground, mine was surging because of my BISS and ground to the o2 sensor.

"have you read"...EGV=EGR